RCA Demensia SPK-500 speakers??????

I picked these up in a trade as I had first heard they had some value despite being an RCA product. These have new foam and are in great shape-no snags, badges intact, carbon fiber drivers, and titanium tweeter. I am undecided on their sound. I compared them with Dahlquist M905's.

Are these junk or a collectible. I want to sell them here on the "gon but am not sure if it is worth it to even try. Thanks